गोविन्द भाष्य (श्रील बलदेव विद्याभूषण - अचिन्त्यभेदाभेद वेदान्त ब्रह्मसूत्र भाष्य सटीक)

Sūtra 15 sukha-viśiṣṭābhidhānād eva sukha—by happiness; viśiṣṭa—distinguished; abhidhānāt—because of the description; eva—indeed. Also because He is described as (full of) bliss. Purport by Śrīla Baladeva Vidyābhūṣaṇa This sūtra refers to Chāndogya Upaniṣad (4.10.5), which says: prāṇo brahma kaṁ brahma khaṁ brahma (the Supreme Personality of Godhead is life. the Supreme Personality of Godhead is bliss. the Supreme Personality of Godhead is sky). The discussion of the Supreme Personality of Godhead that begins with these words continues through some paragraphs up to the paragraph under discussion (Chāndogya Upaniṣad 4.15.1), which describes the person in the eye. For this reason the person in the eye must be the Supreme Personality of Godhead. The interpolation of agni-vidyā between 4.10.5 and 4.15.1 does not break the context because agni-vidyā is a part of the discussion of the Supreme Personality of Godhead. The word viśiṣṭa (distinguished) in this sūtra means that the Supreme Personality of Godhead has all-knowledge and all other transcendental qualities. Sūtra 16 śrutopaniṣatka-gaty-abhidhānāc ca śruta—heard; upaniṣatka—Upaniṣad; gati—destination; abhidhānāt—because of the description; ca—also. And because of the description of the destination of they who hear the Upaniṣads. Purport by Śrīla Baladeva Vidyābhūṣaṇa